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John,

> Bennett & Elliot has a discussion of the Meyer-Overton hypothesis.
> Applying it to O2 gives you a narc pot. of ~2.
> Assigning O2 a narc pot. of 1 makes the calculations simple
> (drop the whole concept of equivalent nitrogen depth, and use equivalent
> air depths). Alternatively, I believe GMIII considers O2 more narcotic than
> N2 - which is consistent with the MO hyp & high(ish) ppO2s.

Thanks for the data, that is quite interesting. About 6 weeks ago I 
played guinea pig for a medical study, conducted in a pressure 
chamber. The highest ppO2 we had to inhale for approx. 20 minutes 
(due to delays of the following physical) was 3.0. Nobody in the 
chamber developed *any* problem, neither convulsions nor narcosis of 
any kind occurred.  Does the book mention any contributing parameters 
for the ppO2 of about 2.?  

Claudia
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